Draft-equalizer.



W. J. CAMPBELL.

DRAFT EQUALIZER. APPLICATION FILED r3317, 1912.

Patented May 28, 1912.

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DRAFT-EQUALIZER.

Specification of Letters Patent.

Patented May 28,1912.

Application filed February 27, 1912. Serial No. 680,306.

To all whom it may concern:

Be it known that I, WILLIAM J. CAMP- BELL, a citizen of the UnitedStates, residing at Honey Grove, in the county of Juniata and State ofPennsylvania, have invented new and useful Improvements in Draft-Equalizers, of which the following is a specification.

The general object of this invention is to provide a three-horseequalizer particularly adapted to-be applied to agricultural implementsand to prevent the center animal from crowding over and interfering withthe work of the others, thus distributing the work evenly. This objectis attained, essentially, by the provision of a connecting rod be tweenthe center draft and one of the side drafts, said rod being adapted tolimit the lateral movement of the said center draft.

In carrying out the objects of the invention generally stated above, itwill be understood, of course, that the essential features thereof arenecessarily susceptible to changes in details and structuralarrangements, one preferred and practical embodiment being in theaccompanying drawings, wherein Figure 1 is a perspective view of theequalizer constructed in accordance with the invention. Fig. 2 is acentral transverse sectional view through the equalizer bar showing themeans for attaching the central swingletree thereto. Fig. 3 is a planview of the connecting rod.

Referring more particularly to the accompanying drawing wherein likereference characters designate similar parts, it will be seen that theinvention comprises an equalizer bar 5 of any well known construction.Adjacent each end of the bar 5, the same is provided with verticalopenings through which are passed securing elements 6 such as bolts ofany ordinary construct-ion. Pivotally connected to the elements 6 areU-shaped clips 7 extending forwardly from the said bar 5 and to each ofthese clips 7 there is attached a swingletree 8 by means of a connectingelement 9. Medially the ends of the equalizer bar 5, there is provided avertical opening 10 through which is passed a pivot bolt 11 having theusual head 12. A

shackle 13 is pivotally connected to the bolt 11 and extends rearwardlyfrom the equalizer bar 5, said shackle being adapted to be connected toa plow or other agricultural implement in any preferred manner. Anelongated U-shaped yoke 14 having flattened extremities 15 is alsopivotally mounted upon the bolt 11 by means of apertures 16 which areprovided in said flattened extremities 15, said yoke 14 extendingforwardly from said equalizer bar 5. A ring 17 loosely engages the yoke14 and has connected thereto a swingletree 18 by means of a connectingelement 19. In order to limit the lateral movement of the swingletree 18so that the animal attached thereto will not interfere with the work ofthe other animals, an elongated connecting rod 20 provided at its endswith eye terminals 21 is connected to the ring 17 and one of the clips 7by means of the said eye terminals. It will thus be seen by reason ofthis connecting rod 20, the lateral movement of the swingletree 18 willbe limited.

From the foregoing description it will be obvious that the inventionprovides an equalizer which is simple in construction thus reducing thecost of manufacture of the same to a minimum, and which is positive andeffective in carrying out this purpose.

Having thus described my invention, what I claim as new is A device ofthe character described comprising an equalizer bar, a pivot elementengaging said bar medially of its ends, an elongated U-shaped yokepivotally mounted upon said pivot element, a ring engaging said yoke, aswingletree connected to said ring, swingletrees connected to each endof said equalizer bar, and a rod having eye terminals connecting saidend swingletrees, said rod being adapted to prevent lateral movement ofthe first named swingletree.

In testimony whereof I aflix my signature in presence of two witnesses.

WILLIAM J. CAMPBELL.

S. C. SToNER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

